#include <LiquidCrystal.h>
// (RS,EN,D4,D5,D6,D7)E
LiquidCrystal lcd(14,27,26,25,33,32);
void setup(){
  lcd.begin(16,2);
  Serial.begin(9600);
  Serial.println("Enter Your Input(on/off): ");
  pinMode(18,OUTPUT);
}
void loop(){
  
  if(Serial.available()>0){
  String x = Serial.readStringUntil('\n');
  if(x == "ON" || x== "on")
  { 
  // lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("LED "+x);
  digitalWrite(18,HIGH);
  delay(2000);
  }
   else if (x=="off" || x == "OFF")
  {
  // lcd.clear();
  lcd.setCursor(0,0);
  digitalWrite(18,LOW);
  lcd.print("LED "+x);
  delay(2000);
  }}
}+++